763
FXUS65 KBYZ 041926
AFDBYZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
126 PM MDT FRI SEP 4 2026
KEY MESSAGES
- ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS THROUGH TODAY.
- TURNING GRADUALLY COOLER AND WETTER LATE SUNDAY INTO EARLY NEXT
WEEK.
DISCUSSION
NEXT 7 DAYS (THROUGH THURSDAY)...
SATELLITE IMAGERY SHOWED AN UPPER LOW OVER THE PACIFIC NW WITH AN
UPPER RIDGE OVER THE CENTRAL CONUS RESULTING IN A BRISK SOUTHWEST
MID LEVEL FLOW OVER OUR REGION. DOWNSLOPE FLOW IS HELPING TO
BOOST TEMPS AND DRY OUT THE ATMOSPHERE. AFTERNOON TEMPS SHOULD TOP
OUT FROM MID 80S WEST TO UPPER 90S EAST. MINIMUM HUMIDITY
READINGS WILL RANGE FROM UPPER TEENS WEST TO NEAR 10 PERCENT OVER
OUR EASTERN PLAINS. A RED FLAG IS IN PLACE ACROSS OUR EAST AND
SOUTHEAST SECTIONS THROUGH THROUGH EARLY EVENING. FOLKS ARE URGED
TO TAKE CARE AND NOT CAUSE ANY SPARKS!
CONDITIONS WILL REMAIN HOT AND MOSTLY DRY INTO SATURDAY BUT A
CHANGE TO SURFACE WINDS OUT OF THE EAST SHOULD ALLOW MINIMUM
DAYTIMES HUMIDITIES TO REMAIN MOSTLY IN THE 20S AND 30S PERCENT.
THE NEXT BEST CHANCE FOR PRECIPITATION ARRIVES BY SUNDAY EVENING
AS THE UPPER TROUGH TO THE WEST TRACKS INTO THE INTER-MOUNTAIN
ROCKIES INCREASING THE SOUTHWEST FLOW OVER OUR AREA AS ENERGY
EJECTS AROUND THE BOTTOM OF THE TROUGH ACROSS MONTANA. THE UPPER
TROUGH IS PROGGED BY MODELS TO TRACK NORTHEASTWARD ACROSS MONTANA
INTO MONDAY WITH ASSOCIATED LARGE SCALE LIFT PRODUCING SHOWERS
AND THUNDERSTORMS SUNDAY NIGHT THROUGH MONDAY. FOR OUR CWA...THE
BEST CHANCE OF NOTABLE RAINFALL IS ACROSS OUR WESTERN ZONES (THINK
YELLOWSTONE WEST AND NORTH) WITH LESS CHANCE TOWARD THE SOUTHEAST
CORNER OF MONTANA. SOME STORMS DURING THIS TIME MAY PRODUCE HEAVY
RAIN AS PWATS WILL BE PUSHED ABOVE ONE INCH OVER THE LOWER
ELEVATIONS. WE DO NOT ANTICIPATE ANY WIDESPREAD SEVERE STORMS, BUT
CANNOT RULE OUT LOCALLY STRONG WINDS AND PERHAPS SMALL HAIL.
TEMPERATURES SHOULD GRADUALLY TREND COOLER OVER THE WEEKEND INTO
NEXT WEEK AS THE UPPER TROUGH APPROACHES AND EXITS THE REGION.
LOOK FOR HIGHS IN THE 70S OVER THE WEST TO 80S OVER THE EAST BY
MONDAY.
ONCE THE UPPER LOW EXITS OUR REGION, WE WILL SEE SOME MODEST
RIDGE BUILDING BY MID WEEK LEADING TO MAINLY DRY CONDITIONS AND
SEASONABLE TEMPERATURES. BT
AVIATION
BREEZY SOUTH TO SOUTHWEST WINDS WILL CONTINUE INTO THIS AFTERNOON,
WITH GUSTS IN THE 20 TO 30 KNOT RANGE. LOOK FOR WINDS TO DECREASE
AND BECOME MORE NORTH TO NORTHWESTERLY INTO THE EVENING HOURS.
WILDFIRES IN ALONG AND NORTH OF US-12 IN CUSTER AND FALLON
COUNTIES MAY BRING PERIODS OF SMOKE TO THOSE AREAS. IMPACTS TO
NEARBY TERMINALS IS LESS CERTAIN AT THIS TIME, BUT REDUCTIONS TO
SLANT RANGE VISIBILITY CAN BE EXPECTED AT TIMES. OTHERWISE LOOK
FOR VFR CONDITIONS TO PREVAIL THROUGH THE PERIOD. MATOS
PRELIMINARY POINT TEMP/POPS
SAT SUN MON TUE WED THU FRI
-----------------------------------------------------------
BIL 056/085 057/085 061/080 054/076 051/078 055/083 058/081
00/U 00/U 75/T 20/N 00/B 01/B 12/W
LVM 048/083 048/082 050/072 042/073 042/077 047/081 049/077
00/U 01/U 76/T 30/N 00/U 11/B 23/T
HDN 052/087 054/089 059/084 049/079 045/080 049/085 053/084
00/U 00/U 55/T 30/N 00/B 01/B 12/W
MLS 058/090 062/090 065/085 054/077 049/078 053/083 054/084
00/U 01/U 64/T 40/N 00/U 00/B 12/W
4BQ 059/090 061/092 067/088 054/080 050/080 055/085 058/085
00/U 00/U 41/B 20/U 00/U 11/B 12/W
BHK 060/094 060/093 062/088 052/079 045/078 048/084 051/085
00/U 12/T 73/W 30/N 00/U 11/B 12/W
SHR 054/088 055/088 058/083 045/077 044/079 049/083 050/082
00/U 00/U 41/U 10/U 00/U 01/B 22/W
BYZ WATCHES/WARNINGS/ADVISORIES
MT...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR
ZONES 129-131>133.
WY...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR
ZONES 274-284.
WEATHER.GOV/BILLINGS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page